In-situ neutron diffraction investigation on the phase transformation sequence of kaolinite and halloysite to mullite

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dc.contributor.authorTezuka, Nen_AU
dc.contributor.authorLow, IMen_AU
dc.contributor.authorDavies, IJen_AU
dc.contributor.authorPrior, MJen_AU
dc.contributor.authorStuder, AJen_AU
dc.date.accessioned2023-01-25T01:57:58Zen_AU
dc.date.available2023-01-25T01:57:58Zen_AU
dc.date.issued2005-11-27en_AU
dc.date.statistics2022-05-20en_AU
dc.descriptionThe paper has also been presented as Abstract T160 on page 237 which appears to be a duplication of item T158. Physical copy held by ANSTO Library at DDC 539.7217/2en_AU
dc.description.abstract“Kaolin” is a major raw material for the fabrication of conventional ceramics. Whilst kaolin has been thoroughly studied in the past decades with regards to its application as conventional ceramics there has been renewed interests in the conversion of kaolin to mullite (3Al2O3,2SiO2) with purpose of furthering the understanding of processing advanced ceramics with high strength, toughness, and thermal stability. One of the advantages of kaolin as a starting material is the needle-like morphology of mullite that is obtained by the transformation sequence at elevated temperature: kaolin —> metakaolin —> Al-Si spinel —> primary mullite (2Al203.SiO2) —> secondary mullite (3Al2O3.2SiO2). The ratio of Al203/SiO2 in mullite is considered to change by the replacement of Al and Si atoms in the tetrahedral positions. However, the in-situ transformation of primary to a secondary mullite has not been investigated in detail. This paper investigates the thermal phase transformation of mullite from two different types of kaolin (kaolinite and halloysite) with or without AIZO3 matrix constraint through the heating and cooling process by in-situ neutron diffraction. The effects of starting materials and heat treatment on the mullitisation process, especially in terms of primary —> secondary mullite evolution, are highlighted and discussed. © 2005 The Authorsen_AU
dc.identifier.booktitleFinal Programme and Abstract Booken_AU
dc.identifier.citationTezuka, N., Low, I. M., Davies, I. J., Prior, M., & Studer, A. (2006). In situ neutron diffraction investigation on the phase transformation sequence of kaolinite and halloysite to mullite. Paper presented at the Eighth International Conference on Neutron Scattering ICNS 2005: "Neutrons for structure and dynamics - a new era", Sydney Convention & Exhibition Centre, Sydney, Australia, 27 November-2 December 2005. In Final Programme and Abstract Book, (pp. 236).en_AU
dc.identifier.conferenceenddate2 December 2005en_AU
dc.identifier.conferencenameEighth International Conference on Neutron Scattering ICNS 2005: 'Neutrons for structure and dynamics - a new eraen_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate27 November 2005en_AU
dc.identifier.otherT158en_AU
dc.identifier.pagination236en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14494en_AU
dc.language.isoenen_AU
dc.publisherThe Bragg Institute, Australian Nuclear Science and Technology Organisationen_AU
dc.subjectKaolinen_AU
dc.subjectRaw materialsen_AU
dc.subjectCeramicsen_AU
dc.subjectMulliteen_AU
dc.subjectFracture propertiesen_AU
dc.subjectPhase transformationsen_AU
dc.subjectNeutron diffractionen_AU
dc.titleIn-situ neutron diffraction investigation on the phase transformation sequence of kaolinite and halloysite to mulliteen_AU
dc.typeConference Abstracten_AU
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